Carf-Models Extra 330SC Instructions Manual page 17

CARF-Models Extra 330SC (3.1m)
Ignition
It's important that your ignition isn't installed too close to the
RC-Systems or the hot engine – try to keep it cool. We
suggest to installing it as shown on the photos before. Use
some foam rubber for shock absorption. When installing a
DA170 or some other boxer engine on tuned pipes we
recommend to install the ignition battery at the front of the
fuselage. Always try to keep it lightweight at the tail.
Otherwise you may need some lead at the front to set the
CG to the right position.
If you decided to install a 4zyl engine such as the DA200 you
won't have to care about that. Install the ignition battery near
to the canopy. So, you can change it easily.
Throttle Servo
Make up the throttle servo mount from the milled plywood
parts supplied, assembled with thin CA, and then glued
firmly with 30 minute epoxy and milled-fibre mix.
If you use a high-power servo with full-metal gear, it'll be ok
to install it at the dome. But make sure that there is enough
cooling! You can glue the servo tray to the motor dome
extension.
When installing a 4zyl engine we advice to install the throttle
servo near to the fuel tank at fuselage not too close to the
mufflers. Set up the linkage out of a 4mm carbon tube with a
M3 all-thread on each side. Don't forget to install a small
check rail at the backplate of the motor dome (photos
below).
Throttle servo installed at the
fuel tank base (DA200)
The carbon linkage and the short check rail (DA200)
Carbon linkage with a
aluminium check rail at the
backplate of the motor
dome (DA200)
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The ignition and the smoke
pump mounted at the dome
The ignition battery and the
throttle servo installed at the
dome (DA170)
The KS-ComfortMount
mounting-system together with
the two aluminium profiles
The canisters installed at the
fuselage